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Red blood cell crenation, SEM
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Red blood cell crenation, SEM
Red blood cell crenation. Coloured scanning electron micrograph (SEM) of two red blood cells (erythrocytes). The cell on the bottom is normal. The cell on the top is crenated (spiked) and is termed an echinocyte. This occurs due to osmosis when a blood sample is exposed to a concentrated solution. It may be symptomatic of uraemia (accumulation of nitrogenous waste in the blood) but more usually is the result of prolonged storage of a blood specimen. Erythrocytes contain the red pigment haemoglobin, allowing them to transport and supply oxygen. Magnification x3250 at 6x7cm size
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Media ID 6421049
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Blood Cell Comparison Couple Crenated Crenation Dehydration Echinocyte Erythrocyte Erythrocytes Magnified Image Microscopic Photos Red Blood Cell Spicules Subjects Cells Circulatory System Osmosis
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This print showcases the intricate details of red blood cells under a scanning electron microscope. The image features two erythrocytes, or red blood cells, with one displaying a normal appearance while the other exhibits crenation, giving it a spiked shape and earning it the name echinocyte. Crenation occurs when a blood sample is exposed to a concentrated solution, causing osmosis to take place. While this phenomenon can be symptomatic of uraemia, which refers to an accumulation of nitrogenous waste in the blood, it is more commonly observed as a result of prolonged storage of a blood specimen. Erythrocytes play a vital role in our circulatory system by containing haemoglobin, the red pigment responsible for transporting and supplying oxygen throughout our bodies. This magnified image at 3250 times its original size allows us to appreciate their delicate structure and understand how dehydration or exposure to hyperosmotic conditions can lead to crenated cells like those depicted here. The contrasting duo presented in this photograph serves as both an educational tool and an artistic representation of cellular biology. Its vibrant colors and meticulous detail make it an intriguing addition to any scientific collection or study on human anatomy.
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